European Journal of Lipid Science and Technology 111(10): 957-966 (2009)

Resumen:

Lipid composition was studied in different white muscle zones (ventral, dorsal and tail) of wild and farmed
blackspot seabream (Pagellus bogaraveo). The study was complemented by moisture, trimethylamine oxide
(TMAO) and trace mineral determinations. Farmed fish muscle showed higher lipid and triacylglycerol
contents, but lower values for moisture, TMAO and a-tocopherol than its wild fish counterpart; no differences
could be observed between both kinds of fish for the phospholipid, sterol and free fatty acid
contents. When compared to wild fish, a higher saturated (SFA), monounsaturated (MUFA) and polyunsaturated
fatty acid (PUFA) content was obtained in farmed fish, while lower values could be observed
for the n-3/n-6 and 22:6n-3/20:5n-3 fatty acid ratios. Most minerals analysed (Cu, Fe, Mn, Se and Zn)
showed higher mean values in farmed fish muscle, except for Ca and Mg which provided higher mean
contents in wild fish. Concerning the muscle site comparison, greater SFA, MUFA and PUFA contents
could be detected in the dorsal zone than in the two other locations both for farmed and wild fish, in
accordance with a higher mean lipid content found at this site. Finally, the tail zone showed higher TMAO
values than the two other locations